The ABC Bagel Shop sells bagels for $0.85 each thus far today they have sold 47 bagels write an equation that represents the amo
1 answer:
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Simple...
you have: For every 14 seeds that Okra seeds Dana planted 9 of them grew; if he planted 182 seeds..how many grew?
Set up an equation...
Cross multiply....
14*x=14x
9*182=1638
14x=1638
x=117
This means that, for 182 seeds planted, 117 of them grew to be plants.
Thus, your answer.
you have: For every 14 seeds that Okra seeds Dana planted 9 of them grew; if he planted 182 seeds..how many grew?
Set up an equation...
Cross multiply....
14*x=14x
9*182=1638
14x=1638
x=117
This means that, for 182 seeds planted, 117 of them grew to be plants.
Thus, your answer.
Answer:
C) 11
Step-by-step explanation:
1) Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
represent the sample mean for the sample
population mean (variable of interest)
s represent the sample standard deviation
n represent the sample size
Since the Confidence is 0.90 or 90%, the value of and
, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.05,0,1)".And we see that
The margin of error is given by this formula:
And on this case we have that ME =7 and we are interested in order to find the value of n, if we solve n from the last equation we got:
And replacing the values that we got we have:
C) 11